W is the point where blood filtration starts in a nephron which makes option A the most appropriate choice.
<h3>What is a Nephron?</h3>
This is defined as the microscopic structural and functional unit of the kidney.
The renal artery carries blood from your heart to your kidneys during which the process of blood filtration starts immediately.
Read more about Nephron here brainly.com/question/242658
Do you need only the names of each part of the brain?
They are the : pens varolii ,pituitary gland, Body of forraix, cerebrum, corpus callosus, cerebellum, Brain stem, Vertebral column, spinal cord , cauda equina, dune mater.
An organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner layer being folded inward to form layers.
Just google it youll find it quicker or watch a movie and write